Material is stretchable and flexible (IMAGE) Princeton University, Engineering School Caption By controlling the material's internal structure, engineers can create objects with a range of properties. Credit Sameer A. Khan/Fotobuddy Usage Restrictions non commercial use License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.